Hi
You could use extra columns
In C2 enter
=IF(B2="","",IF(ISNA((VLOOKUP(B2,$A:$B,2,0)),"",VLOOKUP(B2,$A:$B,2,0)))
copy across to D2 (and E2??)
Copy all formulae down columns as far as required

Signature
Regards
Roger Govier
> Dear experts,
>
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> Thanks in advance
Freshman - 14 Jun 2007 14:53 GMT
Hi Roger,
Thanks for your time and solution. It works but if the flow sequence is
long, how can I know which row is the 1st source location?
Please advise and thanks in advance.
Freshman
> Hi
>
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> > Thanks in advance